Valve-actuating device for hydrocarbon-motors



C.- R. SHORT.

VALVE ACTUATING DEVICE FOR HYDROCARBON MOTORS.

APPLICATION FILED APR. 21.1917- Patented Feb. 17,1920.

INVENTORI I CHARLES R. SHORT,

ATTOR N EY rarnr camera. I

CHARLES R. SHORT, 0F DETROIT, MICHIGAN, ASSIGNOR TO GENERAL MOTORS COMPANY, OF'IDETROIT, MICHIGAN, A CORPORATION OF NEW JERSEY.

VALVE-ACTUATING DEVICE FOR HYDROCARBON-MOTORS.

, Specification of Letters Patent.

Patented Feb. 17, teen.

X Application filed April 21, 1917. SeriaINo. 163,753.

To all whom it may concern Be it known that 1, CHARLES R. SHORT, a subject of the King of Great Britain, and resident of Detroit, lVa-yne county, State of Michigan, have invented certain new and useful Improvements in Valve-Actuating Devices for Hydrocarbon-Motors, of which the following is a specfication.

having a contact portion of-relatively hard metal suitably secured thereto.

These and other objects will more clearly appear from the following description taken in connection with the accompanyin drawings which form a part of this specification, and in which:

Figure 1 represents an end elevation, with portions broken away, of a hydrocarbon motor, embodying a preferred form of my invention;

Fig. 2 is a. transverse vertical section of the tappet illustrated, in elevation, in Fig. 1- and I Fig. 3 illustrates asectional view of the arrangement of the tubular ortion of the tappet, its contact piece an the securing plug assembledprior to securing these parts together.

Referring to the drawings, 10 illustrates a crank case on which mayl'be arranged acylinder block 11 having a head 12, detachably secured thereto, as by bolts 13.

A shaft 14 provided with a: plurality of cams 15,;ismounted in any well known manner in the crank case. A tubular tappet member 15 havin a, hardened contact piece 16 may be slida 1y motmted in .a guide sleeve 17, which is securedto the upper A valve rod 18 is adapted to have its lower end fitted in the tappet plug member 19, and to have its upper end 20 adjustably connected with the end 21 of a rocker arm 22, which is supported on a shaft 23, journaled in a boss 24. The other end 25 of the rocker arm is adapted to abut against the upper end of a stem 26 of a puppet valve member. A spring 27 is adapted to yieldingly close the valve member.

The tappet previously referred to, comprises a tubular member 15, which is initiaflly open at both ends. The lower end is adapted to-be fitted in a hardened steel contact member 16, which has its interior diameter 28 enlarged or. flared out as at 29, toward its closed end 30. These parts may be fastened together by inserting a spherical flexible disk 31, known as a Hubbard plug, and'then' flattening it out after it has been placed in the position illustrated in Fig. 3, the lower end of the tubular member 15 being flared by this flattening process, so that its walls conform with the interior walls of the contact piece 16.

Thetubular member may then be completed by inserting in its upper end, a cylindrical. plug .member, 19, which may then be suitably secured as by a pressed fit or by spot welding it to the tubular member.

While I havedescribed, and will specifically claim, what I deem to be a preferred embodiment of my invention, it will be obvious to those skilled in the art, that-various modifications and changes may be made without departing from the spirit and scope hereof.

ranged over one end thereof and having a flared interior, the adjacent portion of said tube being flared outwardly, complementary to said cap interior, and a disk fitting against theinterior bottom of said cap and filling the area thereof between the flared end of said tube.

In a device ofthe class described, the combination of an open ended tubular member and a cap adapted to be arranged over one end thereof, said cap having a flared interior, the end of said member being flared outwardly to fit against said cap interior, and a disk fitting against the interior bottom of said cap and filling the area thereof between the flared end of said tube. I 3. In a device of the class described, the combination of an open ended tubular memher and a cap adapted to be fitted over one end thereof, said cap having an enlarged interior diameter adjacent its closed end, said tubular member having its end flared outwardly against the walls of said enlarged portion, and a disk fitting against the interior bottom of said cap and filling the area thereof between the flared end of said tube.

4. In a device of the class described, the combination of a tubular member, a cap hav ing its interior flared outwardly toward its closed end, said cap being adapted to be fitted over one end of said tubular member, the end of said member being flared outwardly against the walls of said flared portion of the cap, and a plug insertible through and arranged between the flared walls of said tubular member.

5. In a device of the class described, the combination of a metallic tubular member, a 'hardened steel cap having its interior flared outwardly toward its closed end, said tubular member being adapted to be-fitted in said cap and havingv a flared portion complementary to the flare in said cap, and a disk fitting against the interior bottom of said cap and filling the area thereof between the flared end of said tube.

6. In a device of the class described, the combination of a metallic tubular member, a hardened steel cap having its interior flared outwardly toward its closed end, said tubular member being adapted to be fitted in said cap and having a flared portion complementary to the flare in said cap, and a' plug insertible through and fitted in the flared portion of said tubular member.

7. A valve tappet, comprlsing a metallic tubular member, a plug suitably secured 111 one end thereof, a hardened steel cap fitted over the opposite end of said member and having its interior flared outwardly toward its closed end, said tubular member having the same end flared outwardly against the flared portion of said cap, and a plug fitted to one end'of the flared portion of said tubular member 9. The method of forming a two piece tube, having one end thereof closed, which consists of the insertion of a cylindrical tubular member in a cap, the interior of which is flared outwardlytoward its closed end, inserting a dished disk in the end of said tube contained within said cap, and then flattening said disk and spreading the walls of the tubular member against said flared portion.

10. A method of forming a two piece tube, having one of its ends closed, which consists of inserting one end of a tubular member into a cap, the interior of which is flared outwardly toward its closed end, then inserting a spreading member through said tube to the closed end thereof, and then spreading the walls of the tube against the flared portion of said cap.

In testimony whereof I affix my signature.

CHARLES R. SHORT. 

